Paper-blank-feeding mechanism



WNov. 3, 1925.-

H. BRADY ET AL PAPER BLANK EE'EDING' HECHANISM Filed' June 30. 1922g1/wanton Henry Brady.

Patented Nov. 3, 1925.

,Paras-r" orriflesi...

HENRY BRADY, or BLooMFrELn-AN-n ADIN w'. HILSINGER-7 or ORANGE, NiawJERSEY, AssIGNoRsf'roHENRY BRADY, INafa.y CORPORATION or' Nizw'JERSEY.m

PArnR-BLANK-Fnnnire MEGHANISM' Application filed .Tune 30, 1922. SerialNo. 572,050.

To all whom t may concern Be it known that we, "HENRY BRADY and ADIN WV.HILSINGER, citizens of the United States, residing at Bloomfield, N. J.,and

Orange, N. J., respectively, in the county of Essex and State of NewJersey, have invented certain new and useful Improvements inPaper-BlanlrFeeding Mechanism, of which the following is aspecification, reference being` had therein to the accompanying drawing.

Our invention relates to improvements in blank feeding mechanism, and isadapted for use in paper box or tray making machines,

and more particularly has reference to means for feeding the blanksbeneath a plunger or former, said feeding means being adapted to bewithdrawn from the path of movement of said plunger or former as thesame operates.

Referring to the accompanying drawings, Fig. 1 illustrates inperspective, parts being broken away, a suitable mechanism of a papertray making machine embodying an application of my invention. Fig. 2 isa plan view of the guides and stops against which the blank is fed andshowing the rolls which are moved out of the path of the plunger.

3 indicates a sprocket chain for driving the sprocket t upon the shaft 5mounted in bearings such as 6 and carrying sprocket 7 with chain 8 whichpasses over the sprocket 9 upon the shaft 1() which also carries the sisprocket 11 and chain 12 which engages the sprocket 13 upon the shaft 14carrying pulleys 15-15.

16 is another shaft mounted in bearings such as 17-17 and pivotallymounted thereupon are levers or brackets 18-18 carrying at their outerextremity rollers 19-19 adapted to rest upon the pulleys 15-15 as shown.As the sheet is fed leftwardly between rollers such as 20-20, and 21-21,the sheet or blank passes therefrom between the rollers 15 15, and19--19, and from there the outer margins of the blank or sheet passbetween the adjustable guides 22 until the blank reaches the ends of theguides or adjustable stops indicated by the reference character 23 whereit is now in position to be operated upon by the plungers or formers andother operating mechanism for conveying or shaping the same into acontainer or tray, but in order to accomplish this, the

rollers 19-19 must be withdrawn out of position to clear a path for themovement of said plungers or formers. For that purpose the shaft 24carrying the arms or bearings 17-17 is provided with a lever 25 havingpivotally mounted at the outer extremity a roller 26 which rests uponthe face of the cam 27 upon the shaft 5 so that the shaft 24 isoscillated with each revolution of the shaft 5, thereby drawing` therollers 19-19 right- 65 wardly just before the operation of the formersor plungers and leftwardly immediately thereafter to feed the next stripwhich continues to pass leftwardly between said rollers nntil reachingthe stops 23 when the blank is exactly in position for forming.

Adjusting straps such as 30 may be secured to the guides 22 and to theframe 31V for adjusting the separation of said guides, the straps beingprovided with slits such as 32 and screws 33 for securing the same.

Of course it will be understood that various modications may be made inthe construction and arrangement of parts without departing from thespirit of the invention as S0 claimed.

7e claim:

1. In a blank feeding device of the class described, pairs of contactingrolls for passing the blanks successively beneath a forming mechanism,and in combination therewith a stop for controlling the feed of saidblanks, and means for withdrawing part of said feeding rolls from thepath of movement of said` forming mechanism. 9o

2. In a blank feeding device of the class described, pairs of contactingrolls for passing the blanks successively beneath a forms ing mechanism,and in combination there with a stop for controllingl the feed of saidblanks, and means for withdrawing part of said feeding rolls from theVpath of movement of said forming mechanism, and means for securing saidstop in predetermined positions.

3. In a blank feeding device of the class described, pairs of contactingrolls for passing the blanks successively beneath the forming mechanism,and means for withdrawing said rolls from the path of movement of saidforming mechanism.

4. In a blank feeding device of the class described, pairs of contactingrolls for passing the blanks successively beneath the forming mechanism,a pair of side guides for controlling the direction of feed of saidblanks, and means for withdrawing said feed rolls from the path or"movement of said forming mechanism.

5. In a blank feeding device of the class described, pairsof contactingrolls for passing the blanks successively beneath the forming mechanism,and in combination therewith means for withdrawingl said feeding rollsfrom contact with said blank. l0

In testimony whereof we hereunto affix our signatures.

HENRY BRADY. ADIN W. HILSINGER.

